Home
Class 11
PHYSICS
The internal energy change in a system t...

The internal energy change in a system that has absorbed `2 kcal` of heat and done `500J` of work is

A

8900 J

B

6400 J

C

5400 J

D

7900 J

Text Solution

Verified by Experts

The correct Answer is:
D
`Delta Q=Delta U+Delta W implies 2xx10^3 xx 4.2 = Delta U+500`
`implies Delta U=7900 J`
Promotional Banner

Similar Questions

Explore conceptually related problems

Find the change in internal energy of the system when a system absorbs 2 kilocalorie of heat and at the same time does 500 joule of work

Calculate the internal energy change when 15 joule heat is given to the system and 5 joule work is done by the system.

Find the change in internal energy (in joule) of a gas when it absorbs 40 calories of heat and performs work equal to 16 J .

The change in internal energy in a reaction when 2kJ of heat is released by the system and 6 kJ of work is done on the system will be……

What is the change in internal energy if 10 J of heat is given to system at constant pressure and 20 J of work is done by the system?

A system has internal energy equal to U_(1), 450J of heat is taken out of it and 600J of work is done on it. The final enegry of the system will be

Calculate the internal energy change for each of the following processes: (i) A system absorbs 428 J of heat and does work equivalent to 286 J on its surroundings. (ii)62 J of work is done on the system and 128 J of heat is transferred to the surroundings.

Calculate the changes in internal energy of a system if, 300 J of heat energy is added to the system and a work of 160 J is done on the system.

Change in internal energy when 4 kJ of work is done on the system and 1 kJ of heat is given out of the system is